63955431761327 has 2 divisors, whose sum is σ = 63955431761328. Its totient is φ = 63955431761326.

The previous prime is 63955431761261. The next prime is 63955431761339. The reversal of 63955431761327 is 72316713455936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63955431761327 - 2²⁸ = 63955163325871 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63955431761327.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63955431761827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31977715880663 + 31977715880664.

It is an arithmetic number, because the mean of its divisors is an integer number (31977715880664).

Almost surely, 2^{63955431761327} is an apocalyptic number.

63955431761327 is a deficient number, since it is larger than the sum of its proper divisors (1).

63955431761327 is an equidigital number, since it uses as much as digits as its factorization.

63955431761327 is an evil number, because the sum of its binary digits is even.

The product of its digits is 85730400, while the sum is 62.

The spelling of 63955431761327 in words is "sixty-three trillion, nine hundred fifty-five billion, four hundred thirty-one million, seven hundred sixty-one thousand, three hundred twenty-seven".